Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831115 | Method for removing volatile impurities from polyphenylene ethers | Sterling B. Brown, Alexandros Hasson | 1989-05-16 |
| 4817416 | On-line rheological measurements | John F. Blanch, Ronald F. Garritano, William D. Richards | 1989-04-04 |